Supporting a consistent user interface within a virtualized environment

A non-transitory computer-readable storage medium that tangibly stores one or more sequences of instructions for displaying a text input interface, which when executed by one or more processors, cause:

• executing, on a single device, a first operating system and a second operating system within separate virtual machines;
• executing a first application on the first operating system and a second application on the second operating system, wherein said first application is responsible for displaying content on a physical display of said single device, and wherein said second application processes data received from a user of said single device that pertains to operations performed by said second application and is prevented from accessing any user data for said user outside of a set of user data with which said second application is associated, and wherein said second application cannot display any content on said physical display of said single device;
• upon the first application determining that first user input, submitted by said user, pertains to said operations performed by said second application, said first application sending said first user input to said second application executing on said second operating system;
• after said second application receiving said first user input from said first application, said second application processing said first user input to generate a request for second user input that identifies a particular type of text to be received from the user of said single device;
• upon the first application receiving, from the second application, a second request for said second user input, the first application selecting a text input type, from a plurality of text input types, based on the particular type of text identified by said request for second user input;
• and
• after the first application selects the text input type, the first application displaying the text input interface on said physical display of said single device in a configuration allowing text in the selected text input type to be submitted by the user, wherein said first application determines an appearance of said text input interface on said physical display, and wherein said first application determines said appearance of said text input interface on said physical display.